[日记] 五年前的自己

无意间翻到了本科时候关于自己的一个“采访报道”:http://su.100steps.net/2008/su/news.php?id=8912。感慨万千,时间飞逝,岁月如梭,转眼间,5年就过去了。在此记录和缅怀一下过的自己。时间过得真的太快了,有很多事情,还没想清楚,就已经过去了,但是地球一直在转。人生就是这样子,你没有回头的机会,也没有人知道下一秒的会是什么样子,你只有不断向前跑,一直跑,直到你跑不动为止。期待下一个五年的自己。

[论文][Paper] 基于构件变形的框支剪力墙结构抗震性能评估

基于构件变形的框支剪力墙结构抗震性能评估(Seismic performance evaluation of frame-supported shear wall structures based on component deformation)提出一套框支剪力墙结构抗震的安全性评估原则,用于评估按照中国现行规范设计的一系列框支剪力墙结构模型.通过罕遇地震作用下弹塑性时程分析,获取结构及构件的变形和内力,采用基于变形指标的性能评估方法来评估结构各构件在大震下的破坏情况,分析结构的整体安全性及各构件的性能分布情况.结果表明:框支剪力墙结构的薄弱层位于转换层以上一层,而薄弱层的框支剪力墙容易发生剪切破坏;用现行规范大震下薄弱层层间弹塑性位移角无法准确评估框支剪力墙结构的性能.

[论文][Paper]基于试验的ABAQUS混凝土塑性损伤参数取值方法(Determination of Damage Parameter of ABAQUS CDP Model Based on Test Data)

在ABAQUS的混凝土塑性损伤本构中,塑性损伤参数是影响钢筋混凝土构件行为的重要参数,其取值不仅影响卸载或反向加载的刚度,且直接对构件应变成分有很大影响.对国内外多组混凝土单轴往复压、拉试验数据进行统计分析及数据拟合,提出了一种新的塑性损伤参数的取值方法.与其他方法的比较及数值试验均表明,该方法能较准确地反映真实的混凝土退化特性,并且相对于其他损伤参数取值方法形式更为简洁,便于使用.

[论文][Paper]Deformation Limits of L-Section RC Shear Walls (L形RC剪力墙的变形指标)

In order to establish the relation between damage state and member deformation of the L-section RC shear wall, 216 FE models designed to meet the requirements of the Chinese codes were set up. The analysis fully considers the variation of parameters including axial load ratio and shear span ratio etc. According to the results, criteria of classifying failure modes of L-section RC shear walls are proposed. Failure modes are determined by shear-span ratio, moment-shear ratio and end columns’ reinforcement ratio. Deformation limits corresponding to respective performance levels are put forward. Fitted formulas of calculating the limits are also presented. It is shown that the categorization criteria are reliably accurate in predicting failure modes. Deformation limits of a given L-section RC shear wall could be determined via axial load ratio and moment-shear ratio. The fitted formulas possess a satisfactory correlation with numerical results.